
About
What's New in O2CO2
1.4.0
October 15, 2026
• A clear comparison of Free and Premium access, with annual and lifetime plans. • Six additional exercises with Premium: Box, Sleep, Strengthen, Breathing 1:2, Alternate Nostril and Bee. • More rhythms: Box with 4, 6 or 8 seconds per phase; Sleep with 4/7/8 or 4/7/8/2; Strengthen with 4/4/6, 6/6/10 or 6/6/15. • Breathing 1:2 with three levels and a progressive mode. • Exercise guides in English and French, video links and direct access to the free Masterclass. • New sound choices and saved exercise settings. • Guided Breathing history and charts with Premium; free sharing at the end of a session. • Annual subscribers can switch to lifetime access from the Premium screen, with a reminder to manage annual renewal separately with Apple.
MoreSubscriptions & In-App Purchases
O2CO2 Premium Annual
All Breathing Exercises And History For One Year.




